Zte Z718TL User Manual page 147

Problem
Cannot turn
your phone
on
micro-SIM
card error
Unable to
connect to
the network
Cannot
answer
incoming
calls
Possible causes
Battery power has been
depleted.
The micro-SIM card
malfunctions or is
damaged.
The micro-SIM card is
inserted improperly.
There is debris on the
micro-SIM card
contacts.
The micro-SIM card is
invalid.
You are not within the
network's service area.
The signal is poor.
You have activated the
Call barring feature.
Possible solution
Recharge the phone's
battery.
Take the micro-SIM card
to your service provider
for testing.
Insert the micro-SIM
card properly.
Use a soft, dry cloth to
clean the micro-SIM
card contacts.
Contact your service
provider.
Check the service area
with your service
provider.
Move to an open space,
or if you are inside a
building, move closer to
a window.
Disable this feature. See
Bar Certain
147
Calls.